Reebok Dallas Cowboys Michael Irvin Premier Throwback Jersey Medium Body: 100% 5-oz polyester premier mesh body Sleeves/Yoke: 100% 5-oz polyester premier dazzle Collar: 100% 8.6-oz polyester rib knit Inserts (select teams): 100% 8.6-oz polyester engineered stripe knit Engineered and constructed to replicate a retro Pro Cut jersey silhouette Single-layer dyed or screenprinted tackle twill player name and number give the appearance of multiple layers Screenprinted team wordmarks, logos and sleeve details are modeled after the player's era Embroidered NFL&reg; retro classic shield patch sewn onto bottom of front collar or fabric insert Reebok&reg; and NFL&reg; Throwback jock tag with alpha sizing and Players Association jock tag applied above left hem Reebok&reg; classic wordmark screenprinted on each sleeve